package org.alex.samples.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.alex.samples.model.UserVO;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class Logininterceptor implements HandlerInterceptor{

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object arg2, Exception arg3)
			throws Exception {

	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object arg2, ModelAndView arg3)
			throws Exception {

	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object arg2) throws Exception {
		HttpSession session=request.getSession();
		UserVO user=(UserVO) session.getAttribute("user");
		if(user!=null){
			return true;
		}else{
			response.sendRedirect(request.getContextPath()+"/login");
		}
		return false;
	}
}
